Casting Operator: Controls pouring station in which aluminum and aluminum alloys are cast into ingots: Regulates flow of molten metal from ladle or directly from melting furnace into trough feeding casting molds of casting unit. Regulates flow of metal from trough into molds by adjusting screw valves at bottom of trough. Controls cooling conditions of casting unit by maintaining constant level of metal in molds and regulating series of valves to spray water against molds to produce ingots of uniform crystalline structure. Signals OVERHEAD CRANE OPERATOR (industry) 921.663-010 to remove ingots.